Note
Socket for Onboard Diagnosis
The socket for onboard diagnostics may only be used by the service center or a workshop that operates in accordance with the specifications of the vehicle manufacturer with correspondingly trained personnel and other authorized persons. Otherwise, use may result in operating problems for the vehicle.
Position
There is an OBD socket on the driver's side for checking the primary components in the vehicle's emissions.
Emissions
Reduce the vehicle speed and have the system checked immediately; otherwise, serious engine misfiring within a brief period can seriously damage emission control components, in particular the catalytic converter.
BMW X3 Service & Repair Manual > Transfer box: Removing and installing transfer box (atc 450)
Special tools required:
00 2 030
23 4 050
IMPORTANT:
Before and after replacement, execute the "Repair" service function with the BMW diagnosis
system.
IMPORTANT:
After completion of work, CHECK TRANSMISSION OIL LEVEL and top up if necessary.
Failure to comply with this req ...